Tube Coupling Nut

SAE-AS18280

(NSN) National Stock Number

4730-00-191-6850

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

Item Name Code

03859

Schedule B Code

7609000000

Summary

3b thread class, right-hand thread direction, machined fabrication method, tube coupling nut style, 1.000 inches nominal nut height, 1.250 inches nominal width across flats

DAC	HCC	DMIL	RNCC
E	-	-	3

RNVC	SADC	MSDS	RNAAC
1	-	-	ZZ

Identification

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes:nut (1), tube coupling, reducing; and nut (1), union.

INC	FIIG	Concept	Condition
03859	A021A0	1	1

Specifications

Thread Class

Details

A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

Thread Direction

right-hand

Details

The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

Fabrication Method

machined

Details

The process used in manufacturing the item.

Nut Style

tube coupling

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the nut.

Nut Height

1.000 inches nominal

Details

None.

Width Across Flats

1.250 inches nominal

Details

The shortest straight line between flats,perpendicular to the height.

Length To Shoulder

0.687 inches nominal

Details

None.

Smallest Inside Diameter

0.826 inches nominal

Details

The smallest length of a straight line which passes through the center of the two surfaces of a circular item,and terminates at the inside circumference.

Thread Series

unj

Details

A designation indicating the diameter-pitch combination and the number of threads per measurement scale applied to a series of diameters.

Thread Quantity Per Inch

Details

The number of threads on the item per linear inch measured on a line parallel to the thread axis.

Nominal Thread Size

1.062 inches

Details

A designation that is used for the purpose of general identification of the thread.

Nominal Tube Outside Diameter

0.750 inches

Details

The nominal length of a straight line which passes through the center of a tube,and terminates at the outside circumference.

Seat Angle

0.45 degrees nominal

Details

The angle of the end surface upon which the mated surface seats.

Material

aluminum alloy 2024 or aluminum alloy 7075 overall

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Material Document And Classification

qq-a-225/9 fed spec 1st material response or qq-a-225/6 fed spec 2nd material response overall

Details

The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.

Surface Treatment

anodize overall

Details

The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

Specification/Standard Data

96906-ms21921 government standard

Details

The document designator of the specification or standard which established the item of supply.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
MS21921-12W	30974	3	-	5	1	-	AX
MS21921-12W	14798	3	-	5	9	-	AX
MS21921-12W	14397	3	-	5	9	-	AX
MS21921-12W	50808	3	-	5	9	-	AX
MS21921-12W	00624	3	-	5	1	-	AX
AS18280	0U583	E	-	5	9	-	ZZ
AS21921	0U583	E	-	5	9	-	ZZ
MS21921-12W	0U583	E	-	3	2	-	ZZ
AS18280	81343	E	-	5	9	-	ZZ
AS21921	81343	E	-	5	9	-	ZZ
MS21921	81343	E	-	5	9	-	ZZ
MS21921-12W	81343	E	-	5	9	-	ZZ
MS21921-12W	50948	3	-	5	9	-	AX
MILF18280	81349	3	-	5	9	-	AX
MS21921-12W	96906	3	-	5	9	-	AX

Material and Special Handling

Hazardous material, precious metals, criticality, and electrostatic discharge indicators.

HMIC	PMIC	ESD/EMI	Criticality
N	U	-	-

Freight

Universal / National Freight and Handling Information

UFC	HMC	LTL	LCL
05680	-	Q	-

RVC	WCC	TCC	SHC
-	576	Z	9

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Manufacturer

SAE INTERNATIONAL

CAGE: 0U583

WARRENDALE , PA , 15086-7511

UNITED STATES

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FAQs

Frequently asked questions for NSN 4730-00-191-6850

What is the NIIN of the NSN 4730-00-191-6850?

The National Item Identification Number (NIIN) of the NSN 4730-00-191-6850 is 00-191-6850

When the NSN 4730-00-191-6850 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Mar 11, 1970

Does the NSN 4730-00-191-6850 contain any precious metals?

Type/content is unknown

Does the NSN 4730-00-191-6850 contain any hazardous material?

No data in HMIRS

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